Enameled radiator and method of making the same



june 3, 1924.

E. RICHARDSON ENAMELED RADIATOR AND METHOD OF MAKING THE SAME Filed June18, 1923 a ls INVENTOR Patented June. 3, 1924,

:4 STATES ERNEST RICHARDSON, OF COLLEGE HILL BOROUGH, PENNSYLVANIA.

nuamnmn nanm'roa AND METHOD or mine THE sum -App1ication filed June 18,1923. Serial No. 646,125.

To all whom it may concern:

Be it known that I, ERNEST RICHARDSON, a citizen of the United States,residing at College Hill Borough, in the county of Beaver and State ofPennsylvania, have invented new and useful Improvements in EnameledRadiators and Methods of Making the Same, of which the following is aspecification. v

My invention relates to radiators and methods of manufacturing them, andmore particularly radiators of the hollow steam and hot-water types.

It is the object of this invention to manufacture enameled cast-metalradiators in such a manner thatthe enamel will not be overfired orunderfired on certain portions. I make all the walls of the radiators ofsubstantially equal thickness so that the enamel thereon will be burnedto an equal degree throughout. 1 have found'that, where parts of thecast-metal are substantially thicker than other parts, the enamel on thethinner parts will be overbaked in order to roperly bake or burn thethicker portions, and that the thicker parts will be underbaked if thebaking is stopped when the thinner parts are properly baked.

Referring to the accompanying drawing, Fig. 1 is a side elevation of aportion of-a steam or hot-water radiator; Fig. 2, a central verticallongitudinal section of Fig. 1. before the coat of enamel has beenapplied thereto, a portion of the metal being broken away; Fig. 3, aview like Fig.2, but with a coat of enamel thereon; Fig. 4, a horizontalsection of Fig. 1- on the line IV-IV; Fig. 5, a horizontal section ofFig. 3, on the line VV; Fig. 6, an end view of Fig. 1, looking towardthe right, a portion being in section; and Fig. 7, a section on the lineVII-VII of Fig. 6.

On the drawing, I show three hollow sec- 'tions 1, 2, and 3 of a steamor hot-water radiator, each section being composed of cast-iron or othermetal and being rectangular in shape and having an endless channel 4.The sections are arranged with their sides parallel, their upper andlower portions having the hollow bosses 5. The ends of: the hollowbosses on one section abut against the ends of the hollow bosses on theadjacent section with a fluid-tight fit. The channels 4 of the severalcontiguous sections are in communication with each other by means of thehollow bosses 5.

6 are the legs cast integrally with the end sectionsshown and that thefinal right-hand section will have legs like the section 1. as in wellknown radiators.

According to the present invention the walls7 of the sections are castso as to be of substantially equal thickness throughout. This applies aswell to the walls. of the bosses 5 as to the walls 7 of the channels 4.The legs 6 which are, in the usual radiator, cast much thicker than thechannel walls, are cored out or made hollow, so that the walls 8 of thelegs have substantially the same thickness as the walls 7. Even theparts of the wall 7 (Fig. 6) between the legs 6 and the channels 4 aremade the same thickness as the channel and leg walls.

Having cast the sections as described, I then coat each section,preferably separateamel is baked 0r burned on the sections ina mannerwell known to those acquainted with the art of enameling, the coat ofenamel being marked 9 on the drawing. Each section including bosses, andlegs, if any, are enameled except as above specified. After the sectionshave been enameled they are assembled, and clamped together into arigid-unit by means of the usual rods 10. If preferred, the radiatorsmay beassembled before applying the enamel thereto. The enamel referredto herein is preferably of the porcelain type.

By casting every part of each section with an equal wall-thickness, themetal will be evenly heated throughout in the enameling furnace, and,consequently, the enamel will be evenly fired or burned on the sections.Where parts are substantially thicker than other parts, either thethinner parts are overbaked or overburned, or the thicker parts areunderbaked or underburned'. In either case, a portion of the enamel isdamaged.

I claim- 1. The process of manufacturin a hollow enameled cast-metalradiator whlc consists Y in forming the radiator with all' its walls ofsubstantially equal thickness, coat ng the exterior walls thereof withenamel, and baking the enamel on the radlator.

2. The process of manufacturing a hollow I enameled cast-metal radiatorwhich consists in forming the radiator with hollow metal legs the Wallsof the radiator including the Walls of the legs bein of substantiallyequal thickness, coating all the said Walls externally with enamel andbaking the enamel on the radiator.

3, A radiates comprising a hollow body menses supported on hollow legs,the walls of the body and legs being of substantially equal thickness,and a coat of enamel substantially uniformly baked on the outer surfaceof the said body and legs.

In testimony whereof I hereunto affix my signature this 14th day ofJune,

ERNEST ltlCHAfiDSQlJ.

